On the beta you will find 2 new gift shop items:
You obviously light the sparkler with the lighter and you can even light another sparkler using a lit one. (Can't burn anything else in the game so don't try burning the bears)
Lighting in the middle of a sparkler will light it there but it wont then spread in 2 directions, sorry!
Tank physics have been improved and will happily ram other tanks and ramp off tables.
Other Changes: